Anchor for dredging-machines.



No.762;9 50. PATENTED JUNE 21, 1904. J. SHERWOOD.

ANCHOR FOB. DREDGING MACHINES.

APPLICATION rum) APR. 2a. 1903.

K0 MODEL.

Z ambemtoz Patented June 21, 1904.

PATENT OFFICE.

JERRY SHERWOOD, OF HEBRON, INDIANA. I

ANCHOR FOR DREDGlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 762,950, dated June 21,1904.

Application filed April 28, 1903. Serial No. 154,715. (No modal.) I

To all whom it may concern;

' Be it known that I, JERRY SHERWOOD, acitizen of the United States,residing at Hebron, in the county of Porter and State of Indiana, haveinvented certain new'and useful Improvements in Anchors forDredging-Machines, of which the following is a specification.

My invention relates to devices for anchoring dredges,ditching-machines, &c., and has for its object to provide a device thatwill antomatically lock the machine and prevent its oscillation or sidesway.

My invention consists, essentially, of two braces pivotally mounted onstable supports said ratchets being mounted on a framework erected onthe machine.

The construction and operation ofmy invention will more fully appearhereinafter and by reference to the accompanying drawings, in which-Figure 1 is an end view of a dredging-ma chine, showing my invention inposition; Fig. 2, a top plan view; Fig. 3, a detail view of one of theratchets, and Fig. 4 a detail view of one of the sliding catches.

Referring to the drawings, in which similar reference charactersindicate corresponding parts throughout the several views, A representsthe hull of a dredging-machine having erected thereon a frameworkconsisting of two uprights B at each side of the dredge, connected byhorizontal beams O, braced intheir centers by block D.

E represents a plate secured'to each end of each beam O, having formedtherein ratchetteeth consisting of a slanting edge F toward the outsideof the dredge, an enlarged circular portion G, and an overhanging pointH.

I represents a platform or pedestal erected on each side of the dredge,it being understood that if the machine is working in a narrow ditch, asshown in Fig- 1, the platforms may be erected on the ground on each sideof the ditch; butwhen the machine is working in a broader expanse ofwater either or both platforms may be erected in the water or be mountedon anchored floats.

of metal having its ends bent to form angular rests that are secured tothe upper end of.

stud J, and N represents a catch slidably mounted in said guide,consisting of a U -shaped slide O, mounted on said guide M, through theends of which is inserted a bar P, that rides in the slot Q, formed byangular guide.

M and the side of stud J.

It will be understood. from this description that as the hull A rockswith the swing of the crane of the dredging apparatus the bar P on thestud J on the side of the hull that is raised will slide up the slantingedge F of the teeth on plates E and will settle into one of the circularportions G as the hull rights itself, this operation continuing untilthe studs are positioned relative to the plates E and the dredge toprevent the hull dipping as the crane swings. It will be understood thatin operating in tide-waters my invention will allow an automaticadjustment of the dredge and anchors during flood-tide, while at the ebbit will be necessary to raise the catch N out of engagement with theratchet-teeth in plate E to allow the hull of the dredge to settle. Inorder to raise said catch N, I provide a rope R, secured to the ends ofbar P and running over a sheave S, journaled in the top of stud J.

Having thus described my invention, what I claim is- 1. In an anchor fordredging-machines, triangular frames pivoted on the machine, means topivotally secure said triangular frames outside of said machine, andpawls and ratchets connecting said frames with the machine,substantially as shown and described."

2. In'an anchor for dredging-machines, a

platform erected on each side of the machine, a triangular frame pivotedon the machine and on each platform, and a pawl and ratchet connectingsaid frame and the machine, substan- 3. In an anchor fordredging-machines, triangular frames pivoted on the machine, means topivotally secure said triangular frames outside of said machine,ratchet-plates rigidly secured to said machine, and a sliding pawl oneach triangular frame to intermember with the teeth on said plates,substantially as shown and described.

4. In an anchor for dredging-machines, a

platform erected on each side of the machine,

a triangular frame pivoted on the machine and on each platform,ratchet-plates rigidly secured to said machine, and a sliding pawl oneach triangular frame to intermember with the teeth on said plates,substantially as shown and described.

5. In an anchor for dredging-machines, a platform erected on each sideof the machine,

a framework erected on the hull of the machine, ratchet-plates securedto said framework having teeth with slanting faces on the inner sidethereof, the other side of the teeth having overhanging points, atriangular frame pivoted on each-side of the hull of the machine and oneach platform, and a sliding pawl mounted on each triangular frame tointermember with the teeth of the ratchetplate aforesaid, substantiallyas shown and described.

In testimony whereof I hereto aflix my signature in the presence of twowitnesses.

JERRY SHERINOOD.

Witnesses:

JOHN MORROW, O. A. I/VHARToN.

